lafler



` N 'l me s'-rirresi meer JOHN A. ILnritnn, ori ALBION, NEW YORK.

BRICK-MACHINE.

SPECIFICAIION forming' part ofLetters Patent N0.,289,422, dated December1, 18E3.

I l Application filed May 14,1883. (No model.)

To @ZZ whom, t may con/cern:

ments in Brick-Machines; and I do hereby declare the following to be afull, clear, and exact description ofthe invention, such as will enablel others skilled in the art to which it appertains to make and use thesame.

'Ihis invention relates to brick-machines;l and 1t consists in providingcertainnew and useful improvements in the construction of that type ofbrick-machines which are shown in patents granted to me January 6, 1863,No. 37,348, and August 11, 1868, No. 80,976,whieh improvements willfully appear in the following general description and claims.

The present invention is fully illustrated in the accompanying drawings,as follows:

Figure lisa vertical longitudinal section on theline wx in Fig. 2. Fig.2 is a plan view of the press-bed E, with parts above removed. Fig. 3 isa transverse vertical section of the press-box, or that part of thepress-box which is iixed. Fig. 4 is a perspective view of the slidingcover of the press-box. Fig. 5 is a perspective view of the iiXed partof the press-box.

A is the grindingmill.

B B is the telescopic press-box, of which the part B is fixed to theframe of the grinding mill, and the part B to the vertically-movingpress-bed.

C is the space which is oceupiedby the mold when being filled, and c c care rollers below the mold.

D is the sliding cover of the press-box, and

i D2 D3, &c., is the gearing for operating the said cover.

E is the press-bed, and E* E* is the gearing for operating the saidpress.

F is a packing-strip for preventing the escape of clay with the slidingcover D, and F is a spring for keeping the strip F close against theunder side of the cover.

G is a cam which supports the outer end of theinner frame, E2, of thepressi'rame, and by which it can be dropped at that end to avoid damagefrom stones while pressing, if found necessary.

The general operation of the machine is as l follows: The clay,whenproperly ground,finds its way into the presser-.box B B. From thence itis forced into the molds located at Crwhenever the press-bed is raised,and the press-box is collapsed or telescoped together. The cover f.

D is always slid into place over the top of the *press-box before theparts are telescoped, so that it will offer a resistance to the upwardmovement of the clay as the parts are telescoped. Vhen the pressingistaking place, if

-it should be found there .was anything in the clay-like large stones,for instance-that would damage the press or molds, the cam G can betripped by moving the lever G', and the inner frame, FP, which holds themolds, will drop down and relieve the press.

The parts of the construction here shown whichare thought to be new areas follows: The gearing by which the cover Dis operated, theconstruction and adjustment of the packerstrip F,the gearing for pushingthe molds along on the table or press-bed, and the application of thecam G.

The cover D moves on slides d d on each side of the frame. It isconnected witharoeking lever, D", by the rod D,which attaches to it atD2. The rocking lever is operated from the lever D5, and this from apitman, D, from the gearing-wheel D7. The pitman D6 has a slot, d, whereit connects with the lever D5, which gives a dwell in the action ofthegearing connected with the eover,'s that the cover moves over the box Band dwells, then moves olil and dwells during each revolution of thewheel Dl. It is during the dwell of the cover over the box that thepress must act.

In my patent of 1868 above referred to,where much superior as tostrength and time ofaction.

I have foundit necessary that the cover D shall move through a packedorifice in the side `of the box, or else it will soon clog with clay.

' vents clay working through, and then the strip is kept firmly incontact with the cover by rubber springs F', which are tempered byscrews F2.

IOO

The molds arelaid upon the table or pressLbed E2, above the space C, andare pushed under the box B by a pusher, C', which is connected lby linksC2 with cranks C"s on a rockshaft,0*,

which is rocked by a sector-lever, C5, chain and rod C6, and thehand-lever G1.

Vhen the press is operated from a handwindlass, E5, there is nonecessity ofthe cam G and lever G', for the operator can always tell byfeeling whether there are any obstructions in the clay; but when thiswindlass is operated fromsome ofthe moving parts ofthe machinery, it isnecessary to have some way of relieving the press. Then, again,when itis operated by machinery, it is often desirable to gain time in which toshift the molds. This can all be accomplished by having the inner partof the bed E2 p'iVoted independently on the frame E, as 'at' E, andsupporting the outer end by a detachable device. As soon as the pressurehas been applied, the operator can trip the cam G, and the bed E2 willdrop down in ad- Vance of the frame E, and by the time the said frame Eis ready to move up again the molds may have been shifted and the camreset.

What I claim as new is- 1. In abrick-machine substantially as shown,

the combination,with the press-box BB', of the sliding cover D, operatedby the gearing D3 Di D5, slotted pitman D, and wheel D7, arranged tooperate substantially as and for the purposes set forth.

2. In a brick-n1achine, the combination, substantially as shown, of thepress-box B, the packing-strip F, spring F', and sliding cover D. 3. Ina brick-machine substantially as shown, the combination, with thepress-bed E E2 and pressbox B', of the mold-push G, links C2 C2, cranksC3 C3, rockwshaft C", sector C5, chain and rod C, and hand-lever C7,arranged to operate substantially as and for t-he purposes set forth.

4. The combination, in abrick-machine substantially as shown, ofthepress-frame E, pivoted at E', the contained frame E2, pivoted on saidframe E, as at E3, and the trip-cam G G, for holding the said frame E2even with the frame E, or allowing it to drop independently, as andv forthe purposes set forth.

In testimony whereof' I a'lhX my signature in presence of two witnesses.

JOHN A. LAFLER. Witnesses;

ROB-r. H. PORTER, E. F. SPAULDING.

